Li Xining¹, Yu Xiaolong², Zhang Sheng³

(1. Yellow River Shan Dong Bureau, Jinan 250013; 2.Reconnaissance,Design and Research Institude, Jinan 250013; 3. Shandong Longxinda Consultation and Supervision Limited Company, Jinan 250013)

Abstract£ºConstruct twin jetties in the Yellow River estuary£¬transport the sediment to the deep area in the sea, which is of great sea energy, in order to decelerate the speed of the sand aggradation and in order to steady the estuary watercourse to the sea. Study indicates that the twin jetties whose design breadth is 500 metres should be arranged between the high water level and -10 metres isobathic line. In the plan, the twin jetties£¬whose watercourse breadth is from quondam 1~2 kilometers to current 0.5 kilometers£¬looks like a trumpet. The construction of the twin jetties is: the geogrid section from quondam diversion dike to low tide line, the sand fill tube bag section from low tide line to -2 metres isobathic line, the concrete hydrodynamic flashboard section from -2 metres isobathic line to -10 metres isobathic line.

Keywords£ºEstuary; Harness; Channel; Sea Energy; Twin Jetties